<?php

/* ~ class.smtp.php
  .---------------------------------------------------------------------------.
  |  Software: PHPMailer - PHP email class                                    |
  |   Version: 5.1                                                            |
  |   Contact: via sourceforge.net support pages (also www.codeworxtech.com)  |
  |      Info: http://phpmailer.sourceforge.net                               |
  |   Support: http://sourceforge.net/projects/phpmailer/                     |
  | ------------------------------------------------------------------------- |
  |     Admin: Andy Prevost (project admininistrator)                         |
  |   Authors: Andy Prevost (codeworxtech) codeworxtech@users.sourceforge.net |
  |          : Marcus Bointon (coolbru) coolbru@users.sourceforge.net         |
  |   Founder: Brent R. Matzelle (original founder)                           |
  | Copyright (c) 2004-2009, Andy Prevost. All Rights Reserved.               |
  | Copyright (c) 2001-2003, Brent R. Matzelle                                |
  | ------------------------------------------------------------------------- |
  |   License: Distributed under the Lesser General Public License (LGPL)     |
  |            http://www.gnu.org/copyleft/lesser.html                        |
  | This program is distributed in the hope that it will be useful - WITHOUT  |
  | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     |
  | FITNESS FOR A PARTICULAR PURPOSE.                                         |
  | ------------------------------------------------------------------------- |
  | We offer a number of paid services (www.codeworxtech.com):                |
  | - Web Hosting on highly optimized fast and secure servers                 |
  | - Technology Consulting                                                   |
  | - Oursourcing (highly qualified programmers and graphic designers)        |
  '---------------------------------------------------------------------------'
 */

/**
 * PHPMailer - PHP SMTP email transport class
 * NOTE: Designed for use with PHP version 5 and up
 * @package PHPMailer
 * @author Andy Prevost
 * @author Marcus Bointon
 * @copyright 2004 - 2008 Andy Prevost
 * @license http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)
 * @version $Id: class.smtp.php 444 2009-05-05 11:22:26Z coolbru $
 */

/**
 * SMTP is rfc 821 compliant and implements all the rfc 821 SMTP
 * commands except TURN which will always return a not implemented
 * error. SMTP also provides some utility methods for sending mail
 * to an SMTP server.
 * original author: Chris Ryan
 */
 namespace org;
class SMTP {

        /**
         *  SMTP server port
         *  @var int
         */
        public $SMTP_PORT = 25;

        /**
         *  SMTP reply line ending
         *  @var string
         */
        public $CRLF = "\r\n";

        /**
         *  Sets whether debugging is turned on
         *  @var bool
         */
        public $do_debug;       // the level of debug to perform

        /**
         *  Sets VERP use on/off (default is off)
         *  @var bool
         */
        public $do_verp = false;
        /////////////////////////////////////////////////
        // PROPERTIES, PRIVATE AND PROTECTED
        /////////////////////////////////////////////////

        private $smtp_conn; // the socket to the server
        private $error;     // error if any on the last call
        private $helo_rply; // the reply the server sent to us for HELO

        /**
         * Initialize the class so that the data is in a known state.
         * @access public
         * @return void
         */

        public function __construct() {
                $this->smtp_conn = 0;
                $this->error = null;
                $this->helo_rply = null;

                $this->do_debug = 0;
        }

        /////////////////////////////////////////////////
        // CONNECTION FUNCTIONS
        /////////////////////////////////////////////////

        /**
         * Connect to the server specified on the port specified.
         * If the port is not specified use the default SMTP_PORT.
         * If tval is specified then a connection will try and be
         * established with the server for that number of seconds.
         * If tval is not specified the default is 30 seconds to
         * try on the connection.
         *
         * SMTP CODE SUCCESS: 220
         * SMTP CODE FAILURE: 421
         * @access public
         * @return bool
         */
        public function Connect($host, $port = 0, $tval = 30) {
                // set the error val to null so there is no confusion
                $this->error = null;

                // make sure we are __not__ connected
                if ($this->connected()) {
                        // already connected, generate error
                        $this->error = array("error" => "Already connected to a server");
                        return false;
                }

                if (empty($port)) {
                        $port = $this->SMTP_PORT;
                }

                // connect to the smtp server
                $this->smtp_conn = @fsockopen($host, // the host of the server
                                $port, // the port to use
                                $errno, // error number if any
                                $errstr, // error message if any
                                $tval);   // give up after ? secs
                // verify we connected properly
                if (empty($this->smtp_conn)) {
                        $this->error = array("error" => "Failed to connect to server",
                            "errno" => $errno,
                            "errstr" => $errstr);
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": $errstr ($errno)" . $this->CRLF . '<br />';
                        }
                        return false;
                }

                // SMTP server can take longer to respond, give longer timeout for first read
                // Windows does not have support for this timeout function
                if (substr(PHP_OS, 0, 3) != "WIN")
                        socket_set_timeout($this->smtp_conn, $tval, 0);

                // get any announcement
                $announce = $this->get_lines();

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $announce . $this->CRLF . '<br />';
                }

                return true;
        }

        /**
         * Initiate a TLS communication with the server.
         *
         * SMTP CODE 220 Ready to start TLS
         * SMTP CODE 501 Syntax error (no parameters allowed)
         * SMTP CODE 454 TLS not available due to temporary reason
         * @access public
         * @return bool success
         */
        public function StartTLS() {
                $this->error = null; # to avoid confusion

                if (!$this->connected()) {
                        $this->error = array("error" => "Called StartTLS() without being connected");
                        return false;
                }

                fputs($this->smtp_conn, "STARTTLS" . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . '<br />';
                }

                if ($code != 220) {
                        $this->error =
                                array("error" => "STARTTLS not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }

                // Begin encrypted connection
                if (!stream_socket_enable_crypto($this->smtp_conn, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
                        return false;
                }

                return true;
        }

        /**
         * Performs SMTP authentication.  Must be run after running the
         * Hello() method.  Returns true if successfully authenticated.
         * @access public
         * @return bool
         */
        public function Authenticate($username, $password) {
                // Start authentication
                fputs($this->smtp_conn, "AUTH LOGIN" . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($code != 334) {
                        $this->error =
                                array("error" => "AUTH not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }

                // Send encoded username
                fputs($this->smtp_conn, base64_encode($username) . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($code != 334) {
                        $this->error =
                                array("error" => "Username not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }

                // Send encoded password
                fputs($this->smtp_conn, base64_encode($password) . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($code != 235) {
                        $this->error =
                                array("error" => "Password not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }

                return true;
        }

        /**
         * Returns true if connected to a server otherwise false
         * @access public
         * @return bool
         */
        public function Connected() {
                if (!empty($this->smtp_conn)) {
                        $sock_status = socket_get_status($this->smtp_conn);
                        if ($sock_status["eof"]) {
                                // the socket is valid but we are not connected
                                if ($this->do_debug >= 1) {
                                        echo "SMTP -> NOTICE:" . $this->CRLF . "EOF caught while checking if connected";
                                }
                                $this->Close();
                                return false;
                        }
                        return true; // everything looks good
                }
                return false;
        }

        /**
         * Closes the socket and cleans up the state of the class.
         * It is not considered good to use this function without
         * first trying to use QUIT.
         * @access public
         * @return void
         */
        public function Close() {
                $this->error = null; // so there is no confusion
                $this->helo_rply = null;
                if (!empty($this->smtp_conn)) {
                        // close the connection and cleanup
                        fclose($this->smtp_conn);
                        $this->smtp_conn = 0;
                }
        }

        /////////////////////////////////////////////////
        // SMTP COMMANDS
        /////////////////////////////////////////////////

        /**
         * Issues a data command and sends the msg_data to the server
         * finializing the mail transaction. $msg_data is the message
         * that is to be send with the headers. Each header needs to be
         * on a single line followed by a <CRLF> with the message headers
         * and the message body being seperated by and additional <CRLF>.
         *
         * Implements rfc 821: DATA <CRLF>
         *
         * SMTP CODE INTERMEDIATE: 354
         *     [data]
         *     <CRLF>.<CRLF>
         *     SMTP CODE SUCCESS: 250
         *     SMTP CODE FAILURE: 552,554,451,452
         * SMTP CODE FAILURE: 451,554
         * SMTP CODE ERROR  : 500,501,503,421
         * @access public
         * @return bool
         */
        public function Data($msg_data) {
                $this->error = null; // so no confusion is caused

                if (!$this->connected()) {
                        $this->error = array(
                            "error" => "Called Data() without being connected");
                        return false;
                }

                fputs($this->smtp_conn, "DATA" . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . '<br />';
                }

                if ($code != 354) {
                        $this->error =
                                array("error" => "DATA command not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }

                /* the server is ready to accept data!
                 * according to rfc 821 we should not send more than 1000
                 * including the CRLF
                 * characters on a single line so we will break the data up
                 * into lines by \r and/or \n then if needed we will break
                 * each of those into smaller lines to fit within the limit.
                 * in addition we will be looking for lines that start with
                 * a period '.' and append and additional period '.' to that
                 * line. NOTE: this does not count towards limit.
                 */

                // normalize the line breaks so we know the explode works
                $msg_data = str_replace("\r\n", "\n", $msg_data);
                $msg_data = str_replace("\r", "\n", $msg_data);
                $lines = explode("\n", $msg_data);

                /* we need to find a good way to determine is headers are
                 * in the msg_data or if it is a straight msg body
                 * currently I am assuming rfc 822 definitions of msg headers
                 * and if the first field of the first line (':' sperated)
                 * does not contain a space then it _should_ be a header
                 * and we can process all lines before a blank "" line as
                 * headers.
                 */

                $field = substr($lines[0], 0, strpos($lines[0], ":"));
                $in_headers = false;
                if (!empty($field) && !strstr($field, " ")) {
                        $in_headers = true;
                }

                $max_line_length = 998; // used below; set here for ease in change

                while (list(, $line) = @each($lines)) {
                        $lines_out = null;
                        if ($line == "" && $in_headers) {
                                $in_headers = false;
                        }
                        // ok we need to break this line up into several smaller lines
                        while (strlen($line) > $max_line_length) {
                                $pos = strrpos(substr($line, 0, $max_line_length), " ");

                                // Patch to fix DOS attack
                                if (!$pos) {
                                        $pos = $max_line_length - 1;
                                        $lines_out[] = substr($line, 0, $pos);
                                        $line = substr($line, $pos);
                                } else {
                                        $lines_out[] = substr($line, 0, $pos);
                                        $line = substr($line, $pos + 1);
                                }

                                /* if processing headers add a LWSP-char to the front of new line
                                 * rfc 822 on long msg headers
                                 */
                                if ($in_headers) {
                                        $line = "\t" . $line;
                                }
                        }
                        $lines_out[] = $line;

                        // send the lines to the server
                        while (list(, $line_out) = @each($lines_out)) {
                                if (strlen($line_out) > 0) {
                                        if (substr($line_out, 0, 1) == ".") {
                                                $line_out = "." . $line_out;
                                        }
                                }
                                fputs($this->smtp_conn, $line_out . $this->CRLF);
                        }
                }

                // message data has been sent
                fputs($this->smtp_conn, $this->CRLF . "." . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . '<br />';
                }

                if ($code != 250) {
                        $this->error =
                                array("error" => "DATA not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }
                return true;
        }

        /**
         * Sends the HELO command to the smtp server.
         * This makes sure that we and the server are in
         * the same known state.
         *
         * Implements from rfc 821: HELO <SP> <domain> <CRLF>
         *
         * SMTP CODE SUCCESS: 250
         * SMTP CODE ERROR  : 500, 501, 504, 421
         * @access public
         * @return bool
         */
        public function Hello($host = '') {
                $this->error = null; // so no confusion is caused

                if (!$this->connected()) {
                        $this->error = array(
                            "error" => "Called Hello() without being connected");
                        return false;
                }

                // if hostname for HELO was not specified send default
                if (empty($host)) {
                        // determine appropriate default to send to server
                        $host = "localhost";
                }

                // Send extended hello first (RFC 2821)
                if (!$this->SendHello("EHLO", $host)) {
                        if (!$this->SendHello("HELO", $host)) {
                                return false;
                        }
                }

                return true;
        }

        /**
         * Sends a HELO/EHLO command.
         * @access private
         * @return bool
         */
        private function SendHello($hello, $host) {
                fputs($this->smtp_conn, $hello . " " . $host . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER: " . $rply . $this->CRLF . '<br />';
                }

                if ($code != 250) {
                        $this->error =
                                array("error" => $hello . " not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }

                $this->helo_rply = $rply;

                return true;
        }

        /**
         * Starts a mail transaction from the email address specified in
         * $from. Returns true if successful or false otherwise. If True
         * the mail transaction is started and then one or more Recipient
         * commands may be called followed by a Data command.
         *
         * Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>
         *
         * SMTP CODE SUCCESS: 250
         * SMTP CODE SUCCESS: 552,451,452
         * SMTP CODE SUCCESS: 500,501,421
         * @access public
         * @return bool
         */
        public function Mail($from) {
                $this->error = null; // so no confusion is caused

                if (!$this->connected()) {
                        $this->error = array(
                            "error" => "Called Mail() without being connected");
                        return false;
                }

                $useVerp = ($this->do_verp ? "XVERP" : "");
                fputs($this->smtp_conn, "MAIL FROM:<" . $from . ">" . $useVerp . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . '<br />';
                }

                if ($code != 250) {
                        $this->error =
                                array("error" => "MAIL not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }
                return true;
        }

        /**
         * Sends the quit command to the server and then closes the socket
         * if there is no error or the $close_on_error argument is true.
         *
         * Implements from rfc 821: QUIT <CRLF>
         *
         * SMTP CODE SUCCESS: 221
         * SMTP CODE ERROR  : 500
         * @access public
         * @return bool
         */
        public function Quit($close_on_error = true) {
                $this->error = null; // so there is no confusion

                if (!$this->connected()) {
                        $this->error = array(
                            "error" => "Called Quit() without being connected");
                        return false;
                }

                // send the quit command to the server
                fputs($this->smtp_conn, "quit" . $this->CRLF);

                // get any good-bye messages
                $byemsg = $this->get_lines();

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $byemsg . $this->CRLF . '<br />';
                }

                $rval = true;
                $e = null;

                $code = substr($byemsg, 0, 3);
                if ($code != 221) {
                        // use e as a tmp var cause Close will overwrite $this->error
                        $e = array("error" => "SMTP server rejected quit command",
                            "smtp_code" => $code,
                            "smtp_rply" => substr($byemsg, 4));
                        $rval = false;
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $e["error"] . ": " . $byemsg . $this->CRLF . '<br />';
                        }
                }

                if (empty($e) || $close_on_error) {
                        $this->Close();
                }

                return $rval;
        }

        /**
         * Sends the command RCPT to the SMTP server with the TO: argument of $to.
         * Returns true if the recipient was accepted false if it was rejected.
         *
         * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
         *
         * SMTP CODE SUCCESS: 250,251
         * SMTP CODE FAILURE: 550,551,552,553,450,451,452
         * SMTP CODE ERROR  : 500,501,503,421
         * @access public
         * @return bool
         */
        public function Recipient($to) {
                $this->error = null; // so no confusion is caused

                if (!$this->connected()) {
                        $this->error = array(
                            "error" => "Called Recipient() without being connected");
                        return false;
                }

                fputs($this->smtp_conn, "RCPT TO:<" . $to . ">" . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . '<br />';
                }

                if ($code != 250 && $code != 251) {
                        $this->error =
                                array("error" => "RCPT not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }
                return true;
        }

        /**
         * Sends the RSET command to abort and transaction that is
         * currently in progress. Returns true if successful false
         * otherwise.
         *
         * Implements rfc 821: RSET <CRLF>
         *
         * SMTP CODE SUCCESS: 250
         * SMTP CODE ERROR  : 500,501,504,421
         * @access public
         * @return bool
         */
        public function Reset() {
                $this->error = null; // so no confusion is caused

                if (!$this->connected()) {
                        $this->error = array(
                            "error" => "Called Reset() without being connected");
                        return false;
                }

                fputs($this->smtp_conn, "RSET" . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . '<br />';
                }

                if ($code != 250) {
                        $this->error =
                                array("error" => "RSET failed",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }

                return true;
        }

        /**
         * Starts a mail transaction from the email address specified in
         * $from. Returns true if successful or false otherwise. If True
         * the mail transaction is started and then one or more Recipient
         * commands may be called followed by a Data command. This command
         * will send the message to the users terminal if they are logged
         * in and send them an email.
         *
         * Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>
         *
         * SMTP CODE SUCCESS: 250
         * SMTP CODE SUCCESS: 552,451,452
         * SMTP CODE SUCCESS: 500,501,502,421
         * @access public
         * @return bool
         */
        public function SendAndMail($from) {
                $this->error = null; // so no confusion is caused

                if (!$this->connected()) {
                        $this->error = array(
                            "error" => "Called SendAndMail() without being connected");
                        return false;
                }

                fputs($this->smtp_conn, "SAML FROM:" . $from . $this->CRLF);

                $rply = $this->get_lines();
                $code = substr($rply, 0, 3);

                if ($this->do_debug >= 2) {
                        echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . '<br />';
                }

                if ($code != 250) {
                        $this->error =
                                array("error" => "SAML not accepted from server",
                                    "smtp_code" => $code,
                                    "smtp_msg" => substr($rply, 4));
                        if ($this->do_debug >= 1) {
                                echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />';
                        }
                        return false;
                }
                return true;
        }

        /**
         * This is an optional command for SMTP that this class does not
         * support. This method is here to make the RFC821 Definition
         * complete for this class and __may__ be implimented in the future
         *
         * Implements from rfc 821: TURN <CRLF>
         *
         * SMTP CODE SUCCESS: 250
         * SMTP CODE FAILURE: 502
         * SMTP CODE ERROR  : 500, 503
         * @access public
         * @return bool
         */
        public function Turn() {
                $this->error = array("error" => "This method, TURN, of the SMTP " .
                    "is not implemented");
                if ($this->do_debug >= 1) {
                        echo "SMTP -> NOTICE: " . $this->error["error"] . $this->CRLF . '<br />';
                }
                return false;
        }

        /**
         * Get the current error
         * @access public
         * @return array
         */
        public function getError() {
                return $this->error;
        }

        /////////////////////////////////////////////////
        // INTERNAL FUNCTIONS
        /////////////////////////////////////////////////

        /**
         * Read in as many lines as possible
         * either before eof or socket timeout occurs on the operation.
         * With SMTP we can tell if we have more lines to read if the
         * 4th character is '-' symbol. If it is a space then we don't
         * need to read anything else.
         * @access private
         * @return string
         */
        private function get_lines() {
                $data = "";
                while ($str = @fgets($this->smtp_conn, 515)) {
                        if ($this->do_debug >= 4) {
                                echo "SMTP -> get_lines(): \$data was \"$data\"" . $this->CRLF . '<br />';
                                echo "SMTP -> get_lines(): \$str is \"$str\"" . $this->CRLF . '<br />';
                        }
                        $data .= $str;
                        if ($this->do_debug >= 4) {
                                echo "SMTP -> get_lines(): \$data is \"$data\"" . $this->CRLF . '<br />';
                        }
                        // if 4th character is a space, we are done reading, break the loop
                        if (substr($str, 3, 1) == " ") {
                                break;
                        }
                }
                return $data;
        }

}

?>